Preload timing chain

Install the new chain tensioner (engine removed)

• Replace sealing ring (1).

  Parts: Sealing ring

  Courtesy of BMW OF NORTH AMERICA, INC.

• Tighten the chain tensioner (1).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Chain tensioner to cylinder head
  Chain tensioner piston M22x1.5
  	Joining torque	20 Nm
  	Angle of rotation	30°

  Courtesy of BMW OF NORTH AMERICA, INC.